CN114362417B - Motor sealing structure and motor - Google Patents
Motor sealing structure and motor Download PDFInfo
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- CN114362417B CN114362417B CN202111499527.XA CN202111499527A CN114362417B CN 114362417 B CN114362417 B CN 114362417B CN 202111499527 A CN202111499527 A CN 202111499527A CN 114362417 B CN114362417 B CN 114362417B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The invention relates to a motor sealing structure, which comprises a wire harness connector, a motor end cover and a pressing plate, wherein the wire harness connector is divided into an output end wire harness plug-in unit and an input end wire harness plug-in unit, the end parts of the two wire harness plug-in units are injection molding bodies with parallel opposite inserting surfaces, one opposite inserting surface is provided with a boss, the other opposite inserting surface is provided with a concave part, metal sheets connected with metal leads in the wire harness are respectively exposed at the bottoms of the boss and the bottom of the concave part, and the boss is inserted into the concave part to enable the opposite inserting surfaces to be attached; the motor end cover is provided with a wire inlet and outlet wiring terminal fixing cavity, the wire harness connector is arranged in the wire inlet and outlet wiring terminal fixing cavity, an output wire harness led out by the output wire harness plug-in component is led out from an output wire harness wire outlet hole, an input wire harness led out by the input wire harness plug-in component is led out from an input wire harness wire inlet hole, the output wire harness wire outlet hole and the input wire harness wire inlet hole are sealed, and the open end of the wire inlet and outlet wiring terminal fixing cavity is covered by a pressing plate.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to a motor sealing structure and a motor.
Background
The low-voltage wire harness of the driving motor for the new energy vehicle is mainly used for being connected with a temperature sensor wire harness for measuring the temperature of a motor winding, a rotary wire harness for measuring the position of a motor rotor and a Motor Controller (MCU). The motor temperature sensor wire harness and the motor rotary change wire harness are generally arranged inside the motor shell, the motor controller is arranged outside the motor shell, and the motor low-voltage wire harness needs to penetrate through the motor shell to connect the low-voltage components inside and outside the motor. Therefore, considering the safety and reliability of the driving motor, the waterproof and dustproof grade (i.e. IP protection) of the motor low-voltage wire harness and the accuracy of the low-voltage wire harness connection are key to the motor low-voltage wire harness design. How to realize better waterproof, dustproof, convenient, quick and accurate connection of the low-voltage wiring harness of the driving motor for the vehicle is the core of the low-voltage wiring harness technology of the driving motor for the new energy vehicle.
The motor low-voltage wire harness at home and abroad mainly adopts a sectional structure design, namely, the motor low-voltage wire harness is disconnected with the temperature sensor wire harness and the rotary wire harness and is spliced through PIN PINs; the special penetrating cylinder connector is integrated at the end part of the motor low-voltage wire harness to realize the sealing protection penetrating through the motor shell and is connected with the motor controller. In order to prevent water from entering the motor along the wire harness, the independent tightness of the low-voltage plug-in components outside the motor is also required, so that the development cost of the waterproof design is high, and the popularization and application of motor projects are not facilitated.
The wire harness connector is used for connecting wire harness ends, is commonly used in a matched mode in a socket and plug mode, and is mutually plugged to realize electric signal connection of the wire harness. The waterproof sealing requirements are put forward on the wire harness in many use environments, and potential safety hazards caused by water inflow at the joint of the insulating layer outside the signal wire and the wire harness connector are avoided. But carry out independent seal design to the pencil connector, often the structure is complicated and the cost is higher, because the pencil connector among the prior art adopts PIN stitch grafting structure more, this kind of structural design can't realize independent seal effect through injection moulding mode, and need set up waterproof construction in many places and solve waterproof problem. As the invention patent with publication number CN207009780U discloses a single-end sealed low-voltage plug-in unit, or adopts the PIN stitch structure, it can be seen from the scheme disclosed by the publication that, because the outside of the wiring harness binding post is not integrally formed, in order to realize insulation and waterproofing, a sealing ring needs to be arranged at the joint seam of each component, and the sealing ring can gradually lose efficacy along with the increase of the service time, thereby affecting the waterproof sealing effect. In addition, the socket and the plug which are mutually opposite to each other in the PIN PIN structure are large in size, more design and arrangement space can be occupied, and electric signal connection of the PIN PINs is unstable. If an independent sealing harness connector with simple structure, strong universality and low cost is designed and used for connecting a low-voltage harness of a driving motor for a new energy vehicle, the problem of motor sealing is solved relatively easily.
Disclosure of Invention
The invention firstly discloses a motor sealing structure, which is realized by adjusting the motor end cover structure and then being matched with a wire harness connector with independent tightness for use, and the sealing isolation between the inside and the outside of a motor is realized by adopting the following technical scheme:
the utility model provides a motor seal structure, includes pencil connector, motor end cover and clamp plate, and pencil connector divide into the mutual butt-joint and realizes output end pencil plug-in components and input end pencil plug-in components of electric signal connection, and the tip of two pencil plug-in components is the injection moulding body that has parallel butt-joint face, is equipped with the boss on the butt-joint face, is equipped with the depressed part on another butt-joint face, and the sheetmetal that is connected with the inside metal lead wire of pencil exposes in boss bottom and depressed part bottom respectively, and boss insertion depressed part makes the butt-joint face laminating; the motor end cover is provided with a wire inlet and outlet wiring terminal fixing cavity provided with an output end wire harness wire outlet hole and an input end wire harness wire inlet hole, the wire harness connector is arranged in the wire inlet and outlet wiring terminal fixing cavity, an output end wire harness led out by the output end wire harness plug-in component is led out from the output end wire harness wire outlet hole, an input end wire harness led out by the input end wire harness plug-in component is led out from the input end wire harness wire inlet hole, the output end wire harness wire outlet hole and the input end wire harness wire inlet hole are sealed, and the open end of the wire inlet and outlet wiring terminal fixing cavity is covered by the pressing plate.
Further, the plane of the injection molding body where the wire harness outlet ends of the two wire harness plug-ins are positioned is inclined relative to the opposite inserting surface, and after the two wire harness plug-ins are inserted in opposite directions, the inclined surfaces of the two injection molding bodies are combined into a wedge-shaped structure; the inside of the wire inlet and outlet binding post fixing cavity is close to the inner wall of the motor end cover to form two intersected inclined planes, the wire outlet hole of the wire harness at the output end and the wire inlet hole of the wire harness at the input end are respectively arranged on the two inclined planes, and a wedge-shaped structure formed by the injection molding body after the two wire harness plug-ins are inserted in the wire harness connector is limited by the two inclined planes of the wire inlet and outlet binding post fixing cavity.
Further, sealing rings are respectively arranged on the inclined surfaces of the injection molding bodies of the two wire harness plug-ins.
Further, the inner wall of the motor end cover is sequentially provided with a low-voltage plug-in mounting cavity, a wire harness accommodating cavity and a wire inlet and outlet wiring terminal fixing cavity along a straight line, the opening end of the low-voltage plug-in mounting cavity is positioned on the outer wall of the motor end cover, the low-voltage plug-in mounting cavity is communicated with the wire harness accommodating cavity, the wire harness accommodating cavity is communicated with the wire inlet and outlet wiring terminal fixing cavity through an output end wire harness outlet hole, and the wire inlet and outlet wiring terminal fixing cavity is communicated with the inside of the motor shell through an input end wire harness inlet hole.
Further, the motor end cover comprises a first connecting surface and a second connecting surface which are perpendicular to each other, the first connecting surface is connected with the second connecting surface to form an L-shaped structure, the opening end of the low-voltage plug-in mounting cavity is arranged on the first connecting surface, and the same side of the low-voltage plug-in mounting cavity, the wire harness accommodating cavity and the wire inlet and outlet wiring terminal fixing cavity is attached to the inner wall of the second connecting surface.
Further, the pressing plate is detachably arranged at the open end of the inlet-outlet wire connecting terminal fixing cavity by adopting a fastener.
The invention also discloses a motor adopting the motor sealing structure.
According to the invention, waterproof sealing of low-voltage wire harness inlet and outlet wires inside and outside the motor shell is solved through structural adjustment of the motor end cover and improvement of an independent sealing structure of the low-voltage wire harness connector, a containing cavity for containing a low-voltage wire harness wiring terminal inside the motor shell is arranged on the inner wall of the end cover, and the containing cavity is used for fixing the wiring harness connector for wiring of the low-voltage wire harness inside the motor shell, so that loosening caused by motor vibration is avoided; in addition, because the end cover and the motor shell are originally designed in a sealing way, the inside of the motor shell is ensured to be isolated from the outside, even if an independent sealing structure is not adopted by a low-voltage plug-in unit outside the motor shell, water can flow to an electric interface on the end cover along a low-voltage wire harness and can be blocked by the original sealing structure of the motor shell, and even if the sealing of the electric interface on the end cover fails, the water can enter the inside of the end cover along the low-voltage wire harness; the sealing scheme adopted by the invention has the advantages of simple structure, easy implementation and low cost.
Drawings
FIG. 1 is an exploded view of a motor seal structure in an embodiment;
FIG. 2 is a schematic view of the structure of an input harness insert of the harness connector of the embodiment;
FIG. 3 is a schematic view of the back structure of FIG. 2;
FIG. 4 is a schematic view of an output harness insert of the harness connector of the embodiment;
FIG. 5 is a schematic view of the other angle of FIG. 4;
FIG. 6 is a schematic view of the back structure of FIG. 4;
FIG. 7 is a schematic view of a part of a motor end cover according to an embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of FIG. 7;
fig. 9 is a schematic view of a structure for fixing a low voltage harness by using the motor end cover in fig. 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The embodiment discloses a motor sealing structure and a motor adopting the same, as shown in fig. 1 to 9, the motor sealing structure comprises a wire harness connector, a motor end cover and a pressing plate 9, and the following structures are introduced one by one.
The harness connector adopts an injection molding mode to form an independent sealing structure, and is divided into an output end harness plug-in unit 13 and an input end harness plug-in unit 14 which are mutually plugged to realize electric signal connection, and the two harness plug-in unit structures are shown in fig. 2 to 6. Each harness insert includes a respective harness, a metal sheet, and an injection molded body. Taking the output end wire harness plug-in 13 as an example for illustration, the output end wire harness plug-in 13 comprises an injection molding body at the end part and an output end wire harness 136 led out from the injection molding body, wherein a metal lead is arranged inside the output end wire harness 136, an insulating layer is arranged outside the output end wire harness 136, the end part of the metal lead is welded on a metal sheet, and the joint of the metal lead and the metal sheet is coated by injection molding of insulating materials to form the injection molding body. The injection molding body is divided into a top surface 131, two opposite side surfaces 132 perpendicular to the top surface 131, an opposite insertion surface 134 perpendicular to the top surface 131 and the side surfaces 132, and a wire outlet surface 133 of an output wire harness 136, wherein the wire outlet surface 133 is an inclined surface with respect to the opposite insertion surface 134. A boss 135 protruding from the opposite inserting surface 134 is arranged on the opposite inserting surface 134, the top of the boss 135 is flush with the top surface 131 to form a whole, a plurality of metal sheets 138 protruding from the bottom surface of the boss 135 are exposed on the bottom surface of the boss 135, the bottom of the boss 135 is suspended, and a space is reserved for the opposite inserting part of the input end wire harness plug-in unit 14. A sealing ring 137 is provided around the output wire harness 136 on the inclined outlet face 133.
The structure of the input end wire harness plug-in 14 is similar to that of the output end wire harness plug-in 13, and the input end wire harness plug-in comprises an injection molding body at the end part and an input end wire harness 146 led out from the injection molding body, wherein a metal lead is arranged inside the input end wire harness 146, an insulating layer is arranged outside the input end wire harness 146, the end part of the metal lead is welded on a metal sheet, and the joint of the metal lead and the metal sheet is coated by injection molding of insulating materials to form the injection molding body. The injection molding body is divided into a top surface 141, two side surfaces 142 perpendicular to the top surface 141 and opposite to each other, an opposite insertion surface 144 perpendicular to the top surface 141 and the side surfaces 142, and a wire outlet surface 143 of an input wire harness 146, wherein the wire outlet surface 143 is an inclined surface with respect to the opposite insertion surface 144. A concave portion 145 is formed in the upper half portion of the opposite insertion surface 144, the concave portion 145 is concave inwards from the edge of the top surface 141, a plurality of pits are formed in the bottom side wall of the concave portion 145, exposed metal sheets 148 are arranged at the positions of the pits, and a sealing ring 147 is arranged on the inclined outgoing line surface 143 around the input end wire harness 146.
When the input end wire harness plug-in unit 14 and the output end wire harness plug-in unit 13 are plugged in pairs, the boss 135 is inserted into the concave portion 145, the metal sheet 138 and the metal sheet 148 are in electrical contact, the two opposite plug-in surfaces 134 and 144 are arranged in parallel, the two opposite plug-in surfaces are completely attached after being plugged in pairs, and the two inclined surfaces 133 and 143 just form a wedge-shaped structure. The injection molding structure makes inside lead wire junction can not produce the junction gap, avoids junction to intake, and the injection molding body structure of two plug-ins is inseparable to inserting the back contact, does not expose the sheetmetal of inserting the department, and waterproof sealing effect is good, and this kind of sheetmetal's signal of telecommunication connected mode, compares in PIN stitch structure, and its electric connection signal is more stable, can realize independent sealed effect through injection molding mode.
The harness connector with independent sealing effect is matched with structural improvement of the motor end cover to solve the motor sealing problem, and is described with reference to fig. 7-9. The motor end cover is partially in an L-shaped structure, and can be divided into a first connecting surface 1 and a second connecting surface 2 which are connected in a mutually perpendicular mode. A cavity is formed in the first connection surface 1 in the thickness direction as a low-voltage plug-in mounting cavity 3, where a low-voltage plug-in connected to the outside of the motor housing can be arranged. The lower part of the low-voltage plug-in mounting cavity 3 is attached to the inner wall of the second connecting surface 2, a wire harness accommodating cavity 4 for accommodating a low-voltage wire harness is formed, the outer opening end of the low-voltage plug-in mounting cavity 3 is communicated with the outside of the motor shell, and the inner opening end of the low-voltage plug-in mounting cavity 3 is communicated with the inside of the wire harness accommodating cavity 4. The wire harness accommodating cavity 4 is mainly arranged to enable the wire harness to be stretched out, and abnormal conditions such as needle withdrawal and poor contact of the PIN needle caused by space narrowing are avoided. The lower part of the wire harness accommodating cavity 4 is provided with the wire inlet and outlet binding post fixing cavity 5, in order to realize waterproof sealing of the low-voltage wire harness, the wire inlet and outlet binding post fixing cavity 5 is not directly communicated with the wire harness accommodating cavity 4, but is communicated through the wire harness outlet hole 6 of the output end arranged between the wire harness accommodating cavity 4 and the wire inlet and outlet binding post fixing cavity 5, and the sealing treatment of the wire harness outlet hole 6 of the output end is also facilitated on the basis of meeting the wire harness outlet requirement. An input end wire harness wire inlet hole 7 is formed in the inner wall of the other end of the wire inlet and outlet wiring terminal fixing cavity 5, and the input end wire harness wire inlet hole 7 is communicated with the inner space of the motor shell.
The inlet and outlet wiring terminal fixing cavity 5 is of a structure with hollow inside and one open surface, so that the fixing effect of the low-voltage wiring terminal in the motor shell is better achieved, the size of the inner space of the fixing cavity is not required to be too large, the fixing cavity is designed according to the structure of the wiring terminal plug-in unit as much as possible, and shaking of the fixing cavity is avoided. Taking the above harness connector with a wedge structure as an example, in this embodiment, two intersecting inclined planes are designed at the inner wall of the fixing cavity 5 of the wire connecting terminal close to the second connecting surface 2 of the end cover, so that the wedge-shaped plug-in unit is convenient to fix, and the wire outlet hole 6 of the wire harness of the output end and the wire inlet hole 7 of the wire harness of the input end are respectively opened on the two inclined planes.
The layout of each functional cavity designed on the end cover is considered, and the functional cavities are distributed along a straight line integrally, so that the wiring of the low-voltage wire harness is convenient, and the influence of bending of the wire harness on insulativity is avoided. When the end cover is used for fixing and sealing the low-voltage wire harness inside the motor shell, the output end wire harness plug-in 13 and the input end wire harness plug-in 14 are mutually inserted to realize electric signal connection and then are placed into the wire harness receiving and wiring terminal fixing cavity 5, the output end wire harness 11 (corresponding to 136 in fig. 3) led out of the output end wire harness plug-in 13 is led out of the output end wire harness wire hole 6, the input end wire harness 12 (corresponding to 146 in fig. 1) led out of the input end wire harness plug-in 14 is led out of the input end wire harness wire hole 7, and sealing rings 137 and 147 are respectively positioned at the positions of the output end wire harness wire hole 6 and the input end wire harness wire hole 7 to seal, so that even if low-voltage wire harness water outside the motor shell permeates into the wire harness receiving cavity 4, the low-voltage wire harness water cannot enter the inside the motor shell due to isolation sealing protection of the wire harness receiving and wiring terminal fixing cavity 5, and influence on the reliability of the motor is avoided. The open end of the wire inlet and outlet wiring terminal fixing cavity 5 is covered by a pressing plate 9, and the pressing plate 9 and the open end of the wire inlet and outlet wiring terminal fixing cavity 5 are fixed by adopting a detachable structure in consideration of the convenience of disassembly and assembly of the wiring terminals, for example, a fixing hole 8 is formed in the outer wall of the open end of the wire inlet and outlet wiring terminal fixing cavity 5, and the pressing plate 9 is locked with the fixing hole 8 by a fastener (such as a screw 10) after covering the open end. Because the open end of the wire inlet and outlet binding post fixing cavity 5 is positioned inside the motor shell, on the basis that waterproof sealing treatment is carried out on the motor shell and sealing treatment is carried out on gaps at the positions of the wire outlet hole 6 of the wire bundle at the output end and the wire inlet hole 7 of the wire bundle at the input end, whether sealing is considered between the pressure plate 9 and the open end of the wire inlet and outlet binding post fixing cavity 5 is not necessary, but a sealing device can be arranged between the pressure plate 9 and the open end of the wire inlet and outlet binding post fixing cavity 5.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A motor seal structure, its characterized in that: the wire harness connector is divided into an output end wire harness plug-in unit and an input end wire harness plug-in unit which are mutually inserted to realize electric signal connection, the end parts of the two wire harness plug-in units are injection molding bodies with parallel opposite inserting surfaces, a boss is arranged on one opposite inserting surface, a concave part is arranged on the other opposite inserting surface, metal sheets connected with metal leads in the wire harness are respectively exposed at the bottom of the boss and the bottom of the concave part, and the boss is inserted into the concave part to enable the opposite inserting surfaces to be attached; the motor end cover is provided with a wire inlet and outlet wiring terminal fixing cavity provided with an output end wire harness wire outlet hole and an input end wire harness wire inlet hole, the wire harness connector is arranged in the wire inlet and outlet wiring terminal fixing cavity, an output end wire harness led out by the output end wire harness plug-in component is led out from the output end wire harness wire outlet hole, an input end wire harness led out by the input end wire harness plug-in component is led out from the input end wire harness wire inlet hole, the positions of the output end wire harness wire outlet hole and the input end wire harness wire inlet hole are sealed, and the open end of the wire inlet and outlet wiring terminal fixing cavity is covered by a pressing plate;
the inner wall of the motor end cover is sequentially provided with a low-voltage plug-in mounting cavity, a wire harness accommodating cavity and a wire inlet and outlet wiring terminal fixing cavity along a straight line, the opening end of the low-voltage plug-in mounting cavity is positioned on the outer wall of the motor end cover, the low-voltage plug-in mounting cavity is communicated with the wire harness accommodating cavity, the wire harness accommodating cavity is communicated with the wire inlet and outlet wiring terminal fixing cavity through an output end wire harness outlet hole, and the wire inlet and outlet wiring terminal fixing cavity is communicated with the inside of the motor shell through an input end wire harness inlet hole;
the motor end cover comprises a first connecting surface and a second connecting surface which are perpendicular to each other, the first connecting surface is connected with the second connecting surface to form an L-shaped structure, the opening end of the low-voltage plug-in mounting cavity is arranged on the first connecting surface, and the same side of the low-voltage plug-in mounting cavity, the wire harness accommodating cavity and the wire inlet and outlet wiring terminal fixing cavity is attached to the inner wall of the second connecting surface.
2. A motor sealing structure according to claim 1, wherein: the plane of the injection molding body where the wire harness outlet ends of the two wire harness plug-ins are positioned is inclined relative to the opposite inserting surface, and after the two wire harness plug-ins are inserted in opposite directions, the inclined surfaces of the two injection molding bodies are combined into a wedge-shaped structure; the inside of the wire inlet and outlet binding post fixing cavity is close to the inner wall of the motor end cover to form two intersected inclined planes, the wire outlet hole of the wire harness at the output end and the wire inlet hole of the wire harness at the input end are respectively arranged on the two inclined planes, and a wedge-shaped structure formed by the injection molding body after the two wire harness plug-ins are inserted in the wire harness connector is limited by the two inclined planes of the wire inlet and outlet binding post fixing cavity.
3. A motor sealing structure according to claim 1, wherein: sealing rings are respectively arranged on the inclined surfaces of the injection molding bodies of the two wire harness plug-ins.
4. A motor sealing structure according to claim 1, wherein: the clamp plate adopts the fastener detachable to install at the open end of business turn over line binding post fixed chamber.
5. An electric motor, characterized in that: comprising a motor sealing structure as claimed in any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111499527.XA CN114362417B (en) | 2021-12-09 | 2021-12-09 | Motor sealing structure and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111499527.XA CN114362417B (en) | 2021-12-09 | 2021-12-09 | Motor sealing structure and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114362417A CN114362417A (en) | 2022-04-15 |
| CN114362417B true CN114362417B (en) | 2023-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111499527.XA Active CN114362417B (en) | 2021-12-09 | 2021-12-09 | Motor sealing structure and motor |
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| Country | Link |
|---|---|
| CN (1) | CN114362417B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202997452U (en) * | 2012-10-30 | 2013-06-12 | 东莞市石碣志业电子有限公司 | Power supply fuse box used for wire harness |
| JP2014180184A (en) * | 2013-03-15 | 2014-09-25 | Nippon Pulse Motor Co Ltd | Direct-acting device |
| CN106898887A (en) * | 2017-03-16 | 2017-06-27 | 深圳市沃尔核材股份有限公司 | The connector construction of cable |
| CN206948101U (en) * | 2017-06-20 | 2018-01-30 | 益而益(集团)有限公司 | The cable connection structure of submersible pump |
| CN213585400U (en) * | 2020-11-26 | 2021-06-29 | 卧龙电气南阳防爆集团股份有限公司 | Junction box wire outlet bucket protective cover |
-
2021
- 2021-12-09 CN CN202111499527.XA patent/CN114362417B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202997452U (en) * | 2012-10-30 | 2013-06-12 | 东莞市石碣志业电子有限公司 | Power supply fuse box used for wire harness |
| JP2014180184A (en) * | 2013-03-15 | 2014-09-25 | Nippon Pulse Motor Co Ltd | Direct-acting device |
| CN106898887A (en) * | 2017-03-16 | 2017-06-27 | 深圳市沃尔核材股份有限公司 | The connector construction of cable |
| CN206948101U (en) * | 2017-06-20 | 2018-01-30 | 益而益(集团)有限公司 | The cable connection structure of submersible pump |
| CN213585400U (en) * | 2020-11-26 | 2021-06-29 | 卧龙电气南阳防爆集团股份有限公司 | Junction box wire outlet bucket protective cover |
Non-Patent Citations (1)
| Title |
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| 王鹏，杜学明，杨盛成，王剑光.一种电机引入电缆密封改造方式.《电气防爆》.2020,(第4期),30-36. * |
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| Publication number | Publication date |
|---|---|
| CN114362417A (en) | 2022-04-15 |
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